Thread-cutting temple for looms



E. s. STIMPSON. THREAD CUTTING TEMPLE FOR LOOMS.

APPLICATION FILED DEC.17. 1918.

Patented Jan. 18, 1921.

.Massachusetts have invented 7 w r 'ment in Threadl/utting lcmples for Looms,

UP'FICE.

GURPORATIUN, 0F HOPEDAIJE, MAESHOH'USETTS, A CDJEJEORATIDN 01F IWIAINE.

THREAD-CUTTING ClLElVllPLE lilllllt LUOIVLS.

iriicaoea.

Specification. of Letters Patent.

' atcnted Jan. 18, 1921 Application filed December 17, 1918. Serial No. 267,113.

To all whom it may concern Be it known that l, EowAnn El. Smithson, a citizen of the United bltates residing at Hopedale, county of Worcester, State of an improve of which the following description, in c011- nection with the accompanying drawing, is a specificatiomlilre characters on the draw ing representing like parts.

This invention relates to improvements in thread cutting temples for looms and the object 0 fthe invention is to provide a simple and improved means whereby the movable blade shall be forced into engagement with the fixed blade during the cuttii'ig stroke thereby to secure an eil'cctive shearing action. upon the thread or-filling end.

Another object oi? the invention is to provide a temple thread cutter in which the movable member including the body heel and blade portions is formed as a single integral cast iron member with the portion forming the cutter blade chilled in the c sting operation so as to permit it to take an ed e.

hose and other objects and features of the invention will appear more fully. -lroin the accompanying description and drawings andwill be particularly pointed. out in the claims. I

y In the drawinge,

Figure 1 is an end elevation oi? a temple head and adjacent parts embodying a preiterred form of the invention;

l ig'. 2 it? a vertical sectional view of the construction shown in Fig. 1 taken on the line 2--2 of Fig. 1;

Fig, 3 is a detail in horizontal cross section taken on the line 3-3, Fig. 2;

Fig.4; is a vertical cross section of the cutter blades and spring plate taken trans vcrsely of'Fig. 2"with the movable cutterblade depressed and retracted to show the diverging relation of the cutter blades.

The general construction and purpose of a temple and a temple thread cutter for looms is "so well known to those familiar with the weaving; art that it is unncccesary to set tlie same forth in anythinp more it. ran a generalway. l v- The construction herein illuetrated'except for those features involving the present in vention is and lnay be llll-llllllltl to t y i illna" a stud l8 trated and described in my prior patent, Reissue No. 14-4120 granted January 8, 1918.

in this construction the bar of the usual temple the forward end of which is shown at elhas formed thereon and secured thereto the temple head comprising the Perl 5, the cap (3 with the inclosed toothed roll 7 journaled on the studs 8 and the entire bar and head move forwardly when the lay strikes the depending; heel 9.

llhe cutting n'lechanism of the temple comprises a vertical stationary cutter member shown as a llat steel blade; 10 mounted at one side of a vertical recess in the head of the temple and held in position by a set screw 11. The corner 12 of this blade forms the cutting, edge thereof.

The movable cutter has a rocking; as well as a backward and forward movement in the usual vertical recess in the temple head. In this invention this movable cutter member is a single integral cast iron casting. It comprises a body portion 13 of generally rectum-- gular shape, a depending heel l4 and a cutter blade 15. lhis movable cutter member preferably has the general shape shown in In prior patent, lleissue No. 14%20, and is yiclr ingly held in place in the recess in the temple head by the usual spring 16 coiled at one and about a stud 1"? projecting from the side oi" the bar l and at the other end about projecting from the side of the heel it, this spring acting normally to hold the movable cutter wardly with its rearward cutting blade end elevated and with its cutting edge at the rear of the cutting edge of the fixed blade 10. When the heel 14 is struck by the lay the movable cutter member is swung clownwardly and projected forwardly to effect a shearing action between the cutting edges ofthe two blades to sever the filling end extending from the cloth.

In this invention the integral portion of the movable cutter member which is shaped to form the cutter blade 1.5 is chilled during the operation of the casting of the member and is thus hardened so that it may be ground oil' to present the required cutting edge 19. This materially simplifies the con struction of the movable cutter member over that heretofore employed enabling the entire member to be termed as a single casting cheaply and expeditiously. films the expense,

member projected rear-- .with respect to the vertical plane of"the body 13. When the movable cutter member is in position, therefore, the cutter blade 15 diverges upwardly slightly away from the plane of the stationary cutter as may be observed in Pig. 1. This brings the cutting edge 19 close against the fixed vertical cutter blade 10 and hence if the movable cutter blade be held snugly against the fixed cutterblade an accurate and close cooperation of the two cutting edges is assured when the movable cutter member is carried forwardly by the lay to effect the cutting stroke.

The required pressure of the movable cutting blade against the fixed cutting blade is secured in a simple and effective manner by providing a somewhat resilient metal or steel plate 20 mounted vertically in the recess in the temple head parallel to the fixed cutter; blade 10. This plate 20 may be held in position by the set screw 11 already re; ferred to. In order to effect the adjustment of the plate 20,;provide for wear, and insure the contact of the plate 20 with the cutter blade 15 a set screw 21 is shown passing through the temple head abutting the plate 20 and held in adjusted position by the Lock nut 22. This plate 20 it will thus be observed bears against the cutter blade 15 at the side opposite the stationary cutter blade 10 and at the upper ortion of the cutter blade 15 thus giving the required action to insure the effective cooperation of the two cutting edges.

It will thus be seen that a thread cutting temple is provided which is extremely simple and econdmical in construction and which ingI or severing action.

aving fully described my inventionwhat I claim as new and ters Patent is j 1. A thread cutting temple .for looms comprising avertical stationary cutter member mounted in the'temple"l1ead, a backwardly and forwardly movable cutter member hav ing a c'uttlir blade diverging ,upwardly slightly away from-the plane of the station ary'cu tter member, and means for forcing the movable c'utter member against the sta- "tionary cutter member tobring the cutting edges of the said members into engagement durin thecutting stroke.

2. thread cutting temple for looms comprising a vertical stationary cutter member mounted in the temple head, a backwardly and forwardly movable cutte'r inember having "a cutter blade diverging upwardly gives an effective and accurate shear desire to secure by Let-- slightly away from the plane of the statiolh ary cutter member, and means for engaging the upper portion of said movable cutter blade at the side thereof opposite the stationprising a vertical stationary cutter member mounted in the temple head, a backwardly and forwardly movable cutter member having a cutter blade diverging upwardly slightly away from the plane ot the stationary cutter member, a resilient metal plate mounted in the temple head engaging the movable cutter blade at the side opposite the stationary cutter member and acting to force the cutting edge of the movable cutter blade into engagement with the edge of the stationary cutter member during the cutting stroke.

4. A thread cutting temple for looms having the construction defined in claim 3 together with an' adjustable set screw in the temple head abutting the resilient plate whereby the pressure of the said plate hpbn the movable'cutter blade may be adjusted.

5. In a thread cutting temple for looms a. cutter member molded in a single integral piece from cast iron and comprising a body, a heel projecting from one edge of the body, and a chilled cutter blade projecting from another edge of the body with the cutting edge formed on the chilled portion. 1

(l. In'a thread cutting temple for looms a cutter member molded in a single integial piece, from cast iron and comprising a flat body, a heel projecting from one edge of the body, and a chilled cutter blade projecting 105 mounted in the temple head; a backwardly and forwardly novable cutter member molded iii a single lntegralpiece from cast iron and comprising a body, and a chilled cutter blade projecting from the rearward edge of the body with the cutting edge formed 'on' the chilled portion; the said cutter blade diverging upwardly slightly away from the plane of the stationary cutter member; and

means for forcing the movable cutter member against the stationarv cutter member to bring the cutting edges'of the" said members into engagement during the cutting stroke.

In testimony whereof, I have signed my name to this specification.

EDWARD s. s'rrurqon', 

